Wasn't last week supposed to be prime time for tech earnings? A few high-profile companies in Silicon Valley will be sharing financial details this week. Let's look at the stocks to watch.

Yahoo to announce earnings. So how well is new CEO Marissa Mayer handling transition at the tech giant? Investors should have an indication when the company announces fourth-quarter earnings after the markets close Monday.

The stock sits at just above $20 with little movement in pre-market trading, but that could change in after-hours trading. As the Associated Press reports, investors appear confident in Mayer despite the company failing to generate sustained revenue growth in nearly five years.

Yahoo isn't the only company with earnings news on the horizon.

Facebook, Amazon next. The financial bonanza continues on Tuesday, when online retail behemoth Amazon shares fourth-quarter earnings. Investors should have a sense of how well Amazon's latest line of Kindle tablets sold during the holiday season. Last September, Amazon introduced HD versions of its popular Kindle Fire tablet. In November, the company revealed Kindle sales on Cyber Monday, the online equivalent to Black Friday, were the best ever. Amazon stock is trading at $282.50.

Meanwhile, social network Facebook reports fourth quarter and 2012 financial results on Wednesday, where advances in the mobile space will likely dominate.

After hitting a six-month low of $17.73 on September 4, Facebook stock has notched a huge comeback. It closed Friday at over $31.

BlackBerry launch. Wednesday is a huge day for Research in Motion, as it prepare to release its line of BlackBerry 10 devices. The question is will its stock continue the massive surge it's experienced over the last few months? In pre-market trading, RIM is down by roughly 1% at $17.54, but a strong launch could send that number up quickly.